From: Steven Rostedt <rostedt@goodmis.org>
To: Yong Zhang <yong.zhang0@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
"Ingo Molnar" <mingo@elte.hu>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Peter Zijlstra" <a.p.zijlstra@chello.nl>,
"Mike Galbraith" <mgalbraith@suse.de>,
"Luis Claudio R. Gon�alves" <lgoncalv@redhat.com>,
"Matthew Hank Sabins" <msabins@linux.vnet.ibm.com>,
"Gregory Haskins" <gregory.haskins@gmail.com>,
"Andrew Morton" <akpm@linux-foundation.org>
Subject: Re: [PATCH][GIT PULL] sched/cpupri: Remove the vec->lock
Date: Fri, 05 Aug 2011 08:30:47 -0400 [thread overview]
Message-ID: <1312547447.18583.195.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <20110805082008.GA6628@zhy>
On Fri, 2011-08-05 at 16:20 +0800, Yong Zhang wrote:
> On Tue, Aug 02, 2011 at 04:36:12PM -0400, Steven Rostedt wrote:
> > diff --git a/kernel/sched_cpupri.h b/kernel/sched_cpupri.h
> > index 9fc7d38..6b4cd17 100644
> > --- a/kernel/sched_cpupri.h
> > +++ b/kernel/sched_cpupri.h
> > @@ -12,9 +12,8 @@
> > /* values 2-101 are RT priorities 0-99 */
> >
> > struct cpupri_vec {
> > - raw_spinlock_t lock;
> > - int count;
> > - cpumask_var_t mask;
> > + atomic_t count;
> > + cpumask_var_t mask;
> > };
> >
> > struct cpupri {
>
> So cpupri->pri_active and macro CPUPRI_NR_PRI_WORDS is not needed any more?
It doesn't appear so. Looks like they can be removed too.
Want to send a patch?
Thanks!
-- Steve
next prev parent reply other threads:[~2011-08-05 12:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-02 20:36 [PATCH][GIT PULL] sched/cpupri: Remove the vec->lock Steven Rostedt
2011-08-03 14:18 ` Hillf Danton
2011-08-03 14:49 ` Steven Rostedt
2011-08-05 13:16 ` Hillf Danton
2011-08-03 14:29 ` Peter Zijlstra
2011-08-04 20:32 ` [PATCH] cpupri: Fix memory barriers for vec updates to always be in order Steven Rostedt
2011-08-05 12:27 ` [PATCH v2] " Steven Rostedt
2011-08-14 16:12 ` [tip:sched/core] sched/cpupri: " tip-bot for Steven Rostedt
2011-08-05 8:20 ` [PATCH][GIT PULL] sched/cpupri: Remove the vec->lock Yong Zhang
2011-08-05 12:30 ` Steven Rostedt [this message]
2011-08-05 14:38 ` [PATCH] sched/cpupri: Remove cpupri->pri_active Yong Zhang
2011-08-05 15:26 ` Steven Rostedt
2011-08-06 0:10 ` [PATCH V2] " Yong Zhang
2011-08-14 16:13 ` [tip:sched/core] " tip-bot for Yong Zhang
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